如何在与swarm管理器相同的机器上运行docker swarm节点？

我一直在关注these instructions在我的Ubuntu机器上设置一个docker swarm.我想在运行swarm管理器的同一台机器上运行一些swarm节点,但节点的状态为“Pending”,错误为“无法连接到docker engine endpoint”.

这些是我运行以设置系统的命令：

docker run -d --name consul -p 8500:8500 progrium/consul -server -bootstrap
docker run --name manager -d -p 4000:4000 swarm manage -H :4000 --advertise 192.168.1.18:4000  consul://192.168.1.18:8500
docker run -d -p 6300:2375 swarm join --advertise=192.168.1.18:6300 consul://192.168.1.18:8500

我注意到的一件事是节点没有绑定到端口：

$nmap localhost

Starting Nmap 6.40 ( http://nmap.org ) at 2016-03-02 15:06 EST
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00054s latency).
Other addresses for localhost (not scanned): 127.0.0.1
Not shown: 996 closed ports
PORT     STATE SERVICE
4000/tcp open  remoteanything
8500/tcp open  fmtp

这是docker信息的输出：

$docker -H :4000 info
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 0
Server Version: swarm/1.1.2
Role: primary
Strategy: spread
Filters: health,port,dependency,affinity,constraint
Nodes: 1
 (unknown): 192.168.1.18:6300
  └ Status: Pending
  └ Containers: 0
  └ Reserved CPUs: 0 / 0
  └ Reserved Memory: 0 B / 0 B
  └ Labels:
  └ Error: Cannot connect to the docker engine endpoint
  └ UpdatedAt: 2016-03-02T18:44:38Z
Plugins:
 Volume:
 Network:
Kernel Version: 4.2.0-30-generic
Operating System: linux
Architecture: amd64
CPUs: 0
Total Memory: 0 B
Name: 739dc6a5c721

任何帮助将不胜感激！